xref: /trunk/main/tools/source/rc/isofallback.cxx (revision 89b56da7)
1 /**************************************************************
2  *
3  * Licensed to the Apache Software Foundation (ASF) under one
4  * or more contributor license agreements.  See the NOTICE file
5  * distributed with this work for additional information
6  * regarding copyright ownership.  The ASF licenses this file
7  * to you under the Apache License, Version 2.0 (the
8  * "License"); you may not use this file except in compliance
9  * with the License.  You may obtain a copy of the License at
10  *
11  *   http://www.apache.org/licenses/LICENSE-2.0
12  *
13  * Unless required by applicable law or agreed to in writing,
14  * software distributed under the License is distributed on an
15  * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
16  * KIND, either express or implied.  See the License for the
17  * specific language governing permissions and limitations
18  * under the License.
19  *
20  *************************************************************/
21 
22 
23 
24 // MARKER(update_precomp.py): autogen include statement, do not remove
25 #include "precompiled_tools.hxx"
26 
27 #include <tools/isofallback.hxx>
28 
29 // -----------------------------------------------------------------------
30 
31 // Return true if valid fallback found
GetIsoFallback(ByteString & rLanguage)32 sal_Bool GetIsoFallback( ByteString& rLanguage )
33 {
34     rLanguage.EraseLeadingAndTrailingChars();
35     if( rLanguage.Len() ){
36         xub_StrLen nSepPos = rLanguage.Search( '-' );
37         if ( nSepPos == STRING_NOTFOUND ){
38             if ( rLanguage.Equals("en"))
39             {
40                 // en -> ""
41                 rLanguage.Erase();
42                 return false;
43             }
44             else
45             {
46                 // de -> en-US ;
47                 rLanguage = ByteString("en-US");
48                 return true;
49             }
50         }
51         else if( !( nSepPos == 1 && ( rLanguage.GetChar(0) == 'x' || rLanguage.GetChar(0) == 'X' ) ) )
52         {
53             // de-CH -> de ;
54             // try erase from -
55             rLanguage = rLanguage.GetToken( 0, '-');
56             return true;
57         }
58     }
59     // "" -> ""; x-no-translate -> ""
60     rLanguage.Erase();
61     return false;
62 }
63 
64